BMP to PNG Converter

Convert BMP to PNG

BMP files are completely uncompressed, which makes them huge for what they contain. Converting BMP to PNG keeps every pixel exactly as it is and usually makes the file dramatically smaller, in a format that works in browsers, documents and web uploads.

Same picture, a fraction of the size

A bitmap stores every pixel one after another. PNG compresses that data without throwing anything away, so screenshots, diagrams, pixel art and old Paint drawings often shrink by a large factor. You get a smaller file with no visible change at all.

When you still have BMP files around

Legacy software, old scanners, embedded devices and some Windows tools still write BMP. Websites and modern apps do not like them. PNG is the natural replacement because it is lossless and universally accepted, whereas JPG would blur sharp edges and text.

Pixel art, screenshots and icons

Hand-drawn pixel art, UI screenshots and simple icons are exactly where PNG shines. The conversion does not smooth or resample anything, so every pixel stays crisp and the colours remain identical. The result drops into web pages, wikis, documents and games with no extra steps.

Good to know about BMP to PNG

• The conversion handles common BMP variants, including 24-bit and 32-bit files and indexed colour bitmaps.
• Transparency stored in a 32-bit BMP is preserved in the PNG.
• For photographs stored as BMP, convert to JPG instead if you want an even smaller file.

Frequently asked questions

How do I convert BMP to PNG?

Drop your BMP files onto the converter above (or click to choose them), press Convert and download the PNG files. It works in your browser and needs no software.

Does BMP to PNG change how the image looks?

No. PNG stores the same pixels without losing information, so the picture looks identical.

Are very old or unusual BMP files supported?

Standard bitmaps and common compressed variants are supported. A damaged or very unusual file may be rejected with a clear error.

Is the BMP to PNG converter free?

Yes. You can convert up to 20 files per batch, 10MB each, without creating an account. A free account raises the file limit to 25MB, and Pro or the 24-hour pass go up to 100MB per file with larger batches.

Which files can I upload?

This page is set up for BMP (BMP), but the converter also accepts many other formats, including JPG, PNG, WebP, AVIF, HEIC, TIFF, BMP, PSD and camera RAW files.

What happens to my files?

Uploaded files are used only to produce your conversion and are deleted automatically. See the privacy policy for the exact retention details.